問題詳情
9.船舶槳葉失去平衡產生劇烈震動,多半由於下列何種現象?
(A)葉片凹痕
(B)葉片附著海生物
(C)葉片磨損
(D)葉片斷落
(A)葉片凹痕
(B)葉片附著海生物
(C)葉片磨損
(D)葉片斷落
參考答案
答案:D
難度:簡單0.894309
統計:A(0),B(3),C(8),D(110),E(0)
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